Portion of a computer input device



FIG. 1 is a left-front perspective view of a portion of a computer input device showing our new design;

FIG. 2 is a right-rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right-side elevational view thereof;

FIG. 7 is a right-front perspective of an alternative embodiment of a portion of the computer input device this embodiment is for a left-hand user; and,

FIG. 8 is a left-rear perspective view of the computer input device of FIG. 7.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a computer input device, as shown and described. 